Kamov Ka-226 Gets American Engine With Venerable British
Rolls-Royce Corporation makes
aero-engines, including the popularity champ of the
light-helicopter turbine world, the Rolls-Royce 250. This product
of the former Allison Division of GM (which was acquired by Rolls
ten years ago) just added a new airframe to its long, long list:
the Kamov Ka-226.
Famous for making a wide variety of helicopters with
counterrotating coaxial blades, the Kamov design bureau -- now the
Kamov Holding Company -- built over six hundred of the Ka-226's
forerunner, the Ka-26, which was powered by twin M-14 radials. An
interim, single-turbine design using a 720-shp Russian engine, the
Ka-126, didn't catch on, and the Ka-226 is powered by twin RR 250s.
These engines produce 450 shp each.
The Ka-x26 series has an unusual feature -- it is a pod-and-boom
design resembling a baby S-64 Skycrane, but usually a passenger or
cargo pod is fitted. This pod looks like an organic part of the
helicopter but is removable, so that operators could have extra
pods for special purposes, or operate the aircraft without the pod
if need be.
Under the terms of the deal agreed at the recent Moscow MAKS
show, the Indiana engine factory will supply 50 engines to Kamov,
which will probably produce the helicopters in Kumertau, Bashkiria.
(Kamov also has facilities in Ukraine).
Before striking the agreement with Kamov, Rolls-Royce
Corporation already powered half of the light single and twin
turbine helicopters in the world. The versatile 250 is found in the
Agusta 109, Bell 206, 407, and OH-58, Eurocopter BO105 and AS355,
Enstrom 480, MDHI (formerly Hughes) 500, Schweizer 333, Sikorsky
S-76 (except S-76D), and more.
There are also turboprop as well as turboshaft variants. The
engines have been installed in Bonanzas, T-34s, and Cessna 210s by
STC, and Rolls proudly notes that someone with the need for speed
shoehorned one into a Glasair III.
The exact dash-version that Kamov has ordered was not mentioned
in the press release, but previous Ka-226s have been powered by
Rolls-Royce 250-C20R engines, and Rolls-Royce's engine applications
chart [pdf] also lists the Ka-226 as taking the
-C20R. The engine illustrations in this story are of that specific